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3 years ago

Help????????????????????????

Mathematics

1 answer:

leva [86]3 years ago

4 0

X represents the number of months, Y represents the quantity of money saved

the answer is

15 and 700

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18 and 19 plz asap thank you

hjlf

18. 24 tiles = 4.44 kg.

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3 years ago

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If triangle ABC = triangle DEC what is the value of x? A. 8 B. 5 C. 4 D. 1 E. 2

Zepler [3.9K]

Answer:

Step-by-step explanation:

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3 years ago

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Found on __, genes determine which __ your cells will make.

Brut [27]

Answer:

Found on ORGANISM, genes determine which PROTEINS your cells will make.

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3 years ago

Alexis is knitting a blanket 2 meters long. Every 2 decimeters, she changes the color of the yarn to make stripes. How many stri

IgorC [24]

Answer:

There are 10 stripes in the blanket.

Step-by-step explanation:

We are given the following in the question:

Length of blanket = 2 meters

1 meter = 10 decimeter

Length of blanket in decimeter =

$2\times 10 = 20\text{ decimeters}$

Change of color = Every 2 decimeters.

Number of stripe =

$=\dfrac{\text{Length of blanket}}{\text{Length of change of color of stripe}}\\\\=\dfrac{20}{2} = 10$

Thus, there are 10 stripes in the blanket.

3 0

4 years ago

For which values of a does ???? a a − 4 a + 4 a ???? have an inverse matrix?

Aleks [24]

Answer:

A = $\dfrac{1}{16}\begin{bmatrix}a &-(a-4) \\ -(a+4) & a\end{bmatrix}$

Step-by-step explanation:

given,

Matrix =

A = $\begin{bmatrix}a &a-4 \\ a+4 & a\end{bmatrix}$

determinant of matrix

|A| = a×a - (a-4)(a+4)

|A| = a² - a² +16

|A| = 16

inverse of the matrix

to calculate inverse of two matrix interchange the term a₁₁ with a₂₂ and multiply the -ve with a₁₂ and a₂₁

the inverse is

A = $\dfrac{1}{16}\begin{bmatrix}a &-(a-4) \\ -(a+4) & a\end{bmatrix}$

6 0

3 years ago